As pika said it is definitely feasible! You are not crazy. I'm in what I would term as a light 24/7 dynamic, started fairly recently after a period of mostly bedroom-only D/s. I call it light because we only have a few basic rules, the rest of our roles come natural to us as part of the dynamic.

Within that dynamic, my D takes care of most everything. Finances, work, stuff that needs mending in the house (we're temporarily long distance and it's been an adjustment having to figure out some of these things myself), organizing things whenever we travel or move house, also simple things like when we drive somewhere together he's the one that drives. I do most of the childcare and work from home a little, also I make sure I'm home when he comes home, ensure the house is in order and we have the groceries we need, cook when he doesn't feel like doing it (he loves to cook so often he won't let me do it), etc. When the kids are asleep there's a bit more of our dynamic visible as I wear my collar, we scene or just hang out, in which case I sit by his feet unless told otherwise.

Part of our relationship has always been like this, from the very beginning, before either of us had ever heard of 24/7 D/s or anything related to it. I think maybe that's why it works really well for us. In spite of what some outside the kink world might think of as an unequal relationship, we very much feel like equals intellectually and this too characterizes our relationship. Outside our marriage I have no problem taking charge, but inside it I am very thankful he does it for us.